- 1 How to Choose a Water Filter for Backpacking. Overview of Filter Types and Characteristics
- 2 Types of Portable Water Filters
- 3 Travel Filter Life
- 4 What are Portable filters Made of?
- 5 How to maintain the travel filter
- 6 Additional Water Disinfection Methods
- 7 TOP 11 Portable Water Filter for Backpacking
- 7.1 #1 Katadyn Vario Portable Filter
- 7.2 #2 Katadyn Mini Ceramic Black
- 7.3 #3 LifeStraw Mission
- 7.4 #4 LifeStraw Personal
- 7.5 #5 Sawyer Point One Squeeze
- 7.6 #6 Sawyer Mini filter
- 7.7 #7 Adventurer Opti SteriPen Portable Disinfection
- 7.8 #8 Portable disinfectant SteriPen Ultra
- 7.9 #9 Survival Filter PRO
- 7.10 #10 Aquamira Frontier Emergency Water Filter System
- 7.11 #11 MSR Trailshot Microfilter Filter
How to Choose a Water Filter for Backpacking. Overview of Filter Types and Characteristics
You have to drink water during the hike from incomprehensible rivers and streams. Sometimes the water looks clear, but cows graze upstream. And sometimes the camp has to be set up where water can only be taken from a stagnant lake, and it is cloudy, and its smell is repulsive. Once upon a time, tourists in such situations had to rely only on coarse filtration of water, boiling and their own immunity. And at the same time suppress disgust in yourself. But today the water on the hike can be purified and even disinfected using compact microfilters. Here we will tell you what they are and how to choose the right one.
When is a travel filter useful?
On many tourist routes, it is impossible to buy bottled water on time or to replenish its supply from a reliable source – the source of a mountain stream or an artesian well. The water on the trail can be muddy due to silt and sand, tea-colored due to decomposed plant organic matter or outwardly clean, but infected with dangerous pathogens as a result of the vital activity of animals or humans. For example, it is impossible to drink from many streams during a flood: the water carries masses of silt, soil, sand and litter from washed-out banks. And while trekking in Nepal, you cannot drink even from seemingly clean high-mountain lakes and streams, otherwise you will catch a gastrointestinal infection.
A walking filter cleans water from mechanical impurities and dangerous microorganisms. This means that you will minimize the risk of troubles as much as possible, such as a deterioration in well-being, diarrhea and the appearance of parasites in the body. With a filter, you can boil your water much less often while hiking, which saves time and reduces fuel consumption, making your backpack lighter. It is also possible not to carry a supply of water on those days when there are no reliable sources of water on the route – you will simply filter the required amount on the way.
Traveling in regions with poor water supply
In many regions of the planet, local water supply systems do not meet sanitary standards: water does not undergo proper treatment, becomes polluted due to worn-out water supply systems, and sometimes mixes with sewage. It is dangerous to drink tap water in such places. An example here is the same Nepal: the local water supply leaves much to be desired, you can only drink boiled or bottled water. But boiling water and drinking water cost money, and the higher the mountain lodge, the higher the price. If in Namche Bazar a liter of water costs 100 rupees, then in Gorakshep it costs 400 rupees. Here, a travel filter will help you save a lot of time and money for clean water and fuel for boiling.
In the event of floods or earthquakes, water supply systems can be disrupted. Water in such cases requires very deep purification, as it is saturated with various infections, parasites and pollution. A walking filter can become one of the stages for purification and disinfection of drinking water.
What kind of travel filter can be considered effective
Actually, the filter is a replaceable cartridge with a filtering agent inside. These can be ceramics, hollow fibers, quartz, fiberglass, and even cellulose. But the most important thing is the pore size in the filter medium. It should be no more than 0.2 microns. It is no coincidence that this size was chosen and made the industry standard. Not only the smallest mechanical impurities like sand, but also the majority of dangerous bacteria, parasites and unicellular microorganisms common in the aquatic environment cannot pass through such small pores of the filter. They are most often the cause of gastrointestinal disorders. Filters with pores of less than 0.2 microns are called microfilters in the industry.
Viruses are extremely rare in natural water sources, but they are smaller than single-celled organisms and most bacteria, which is why they are able to slip even through a microfilter. But the water can also be purified from them. Filters with pores no more than 0.02 microns in diameter are able to trap the most common viruses found in the aquatic environment – norovirus, rotavirus and hepatitis A virus. These types of filters are called ultrafilters or purifiers. They are recommended for use when traveling in third world countries, tropical regions, as well as in emergency situations. They are also needed when you filter water from a reservoir that is located in direct proximity to pastures and livestock watering holes. However, even such filters are not capable of purifying water from absolutely all viral infections, since the size of some viruses can be less than 0.01 microns! Therefore, if the source of water raises great doubts, then the filtered water must be additionally disinfected. We have written how to do this at the end of the article.
No modern travel filter is capable of making seawater or chemically contaminated water from water bodies in the immediate vicinity of agricultural land and mines potable. The filter is not able to remove absolutely all viruses, chemical compounds and radioactive materials, as well as particles smaller than the diameter of the filter pores.
Types of Portable Water Filters
Structurally, there are three main types of hiking microfilters:
- Filter pumps.
- Gravity filters.
- Flow-through filters.
Camping Filter Pumps
In such filters, you yourself pump water using a pump.
Advantages of filter pumps
- You can filter the water just as much as necessary – for example, for a couple of sips.
- Usually, filter pumps have a rather long water intake hose, so water can be pumped out of a shallow or hard-to-reach reservoir, from where it is difficult to scoop up. For example, from a puddle or stream with a high or crumbling bank.
- At the end of the hose, there is usually a pre-filter for water purification – a prefilter. He filters it, preventing large impurities from entering the hoses and clogging the cartridge.
- There is often a float on the hose, which is why the water intake comes from the upper, as a rule, the cleanest edge of the water.
The rate of passage of water through the filter cartridge depends on the material from which it is made, as well as on the design of the pump itself. For example, water passes through the MSR MiniWorks and MSR TrailShot filters at the same rate of 1 liter per minute, but the MiniWorks has a ceramic cartridge and a powerful pump with a long lever, while the TrailShot has a hollow fiber cartridge, but a “pear” pump that fits into a fist and sways like an expander.
The declared operating speed of filter pumps varies from 1 to 3 liters per minute. But this is provided that the cartridge is clean and has not had time to clog up with fine debris, and the user is actively pumping water. In real conditions, the water flow rate can drop by 2-2.5 times.
Disadvantages of filter pumps
- We need to pump water. Sometimes this requires a lot of effort, especially when you need to filter out a large volume of turbid water, which constantly clogs the cartridge.
- You can’t move away – you have to stand at the water source and pump the water monotonously.
- There are many moving parts in the pump that need to be serviced – changing gaskets, lubricating the handle, and so on.
- Weight – other things being equal, filter pumps are heavier than other designs. For example, the laconic Platypus GravityWorks 2L gravity filter weighs only 187 grams, and the comparable MSR HyperFlow filtering speed is already 221 grams.
Examples of filter pumps: MSR SweetWater, MSR HyperFlow, Katadyn Pocket, Katadyn Combi and others.
Camping Gravity Filters
Here, all the filtering work is done by the force of gravity. The dirty water tank is suspended higher, and the filter cartridge is built directly into it or directly into the tube. Water flows down this tube, is filtered in a cartridge and, being clean, fills a flask or wineskin.
Advantages of gravity filters
- They do not require the presence of the user – you have hung up a container with filtering water, and you can relax or start setting up a camp.
- Gravity filters work quickly – they clean an average of 1.5 liters of water per minute, if the cartridge is not clogged.
- The water does not need to be pumped, so you can easily filter large volumes – from 2-3 to 10 liters at a time.
- Gravitational filters are reliable: there is practically nothing to break in them due to the simplicity of the design.
- They have no equal in terms of the weight / volume ratio of filtered water. The MSR AutoFlow XL weighs only 340 grams, but is equipped with a 10-liter bag, from which it filters the water in about 6-7 minutes.
Disadvantages of gravity filters
- It is inconvenient to quickly filter small volumes of water: for the sake of one mug of clean water, you need to open a container, pour water, connect a filter, wait until the water is filtered.
- First you need to draw water into a container, and this is difficult to do from small or hard-to-reach reservoirs.
- Gravity filters do not have pre-filters on dirty water tanks. Therefore, if the water is heavily contaminated, you must first filter it yourself to clean it of coarse debris, otherwise it will quickly clog the filter cartridge.
Examples of gravity filters: Platypus GravityWorks, MSR AutoFlow, Katadyn Camp and others.
Flow-through Field Filters
This is a very motley mass of travel filters, which cannot be attributed to either gravity or pump filters. They can differ greatly in design and properties, and conditionally they can be divided into three classes.
Filter bottles. The filter cartridge is built into the neck of the soft flask. Pour dirty water into it, and then squeeze or roll up to create the pressure necessary for filtration – the water will pour out of the neck already clean. The main advantage of such systems is their low weight. For example, the Katadyn BeFree soft one liter flask together with the filter weighs only 63 grams.
Hose flow filters. In the English-speaking environment – in-line microfilters. As the name suggests, they are embedded in the hose break. So with their help, you can filter water from the tap or from the bag of the drinking system. If desired, such a filter can be turned into a gravity filter – you just need to reliably connect it to a container for dirty water and hang it so that the water flows through a hose through the filter cartridge.
Filter tubes. Through them, you can drink directly from a reservoir, for example from a puddle or pond. The most famous are produced under the LifeStraw brand. Lightweight and compact, they are poorly applicable in real hiking practice. With such a tube, you have to bend over to the surface of the water, where there may be dirt, with its help you do not fill a flask or wineskin in reserve.
Which class of filters should you choose?
Much depends on your preferences and experience. We will only give guidelines based on the established tourism practice:
- Filter pumps are suitable for solo tourists and small groups of up to three people. It is also the only choice if you often have to draw water from hard-to-reach or shallow sources – puddles, ponds with unstable banks, streams between stone crevices.
- Gravity filters are suitable for small and large groups of tourists, as they can filter large volumes of water without human intervention – up to 10-15 liters at a time.
- The flow-through filters and bottle filters are suitable for solo hikes and ultra-light hikers due to their elusive low weight.
- Filter tubes are suitable only as a means for individual filtration of drinking water in an emergency and are not applicable in real camping practice.
Travel Filter Life
As a rule, the responsible manufacturers indicate the amount of water that can be effectively filtered, after which the filter cartridge needs to be replaced. Even the most “short-lived” fiberglass filters can purify about 750 liters of water. But that’s a lot. A resource of 1000 liters is more than enough to, for example, traverse the entire ultra-long Pacific Crest Trail, filtering 5 liters of water daily. This is a calculation for 130 days, adjusted for the fact that due to turbid water, the real filter resource will be 20-30% lower than the declared one. This is enough for ordinary tourists for 3-4 seasons of cartridge operation, 28 field days each. And you should take a closer look at more durable options if the filter will be used more intensively – more often or with high water pollution, in which there is a lot of silt and fine litter.
Most filter cartridges can be replaced with a new one when it reaches the end of its life. Therefore, the availability of replacement cartridges on the market is very important when you are choosing a new filter. If they are not on the shelves, then you will have a useless case at home, unable to filter water. Also pay attention to the cost of replacement cartridges and their resource. It so happens that an assembled filter is cheaper than competitors, but its cartridges are expensive and at the same time have a lower resource. Because of this, its maintenance will be more expensive in the long run, and it may be better to immediately buy a filter model with a higher price, but with cheaper “consumables”.
What are Portable filters Made of?
The body and the principle of operation of the filter itself can be very different, but it is always based on a replaceable cartridge, and inside it there is a substance through which water passes for cleaning. Different materials can act as a filtering medium, however, only four types of them are used in hiking microfilters:
- Hollow fibers.
- Ceramics – ceramic.
- Glass fiber – glass-fiber.
- The finest hollow fibers – advanced hollow fibers.
The filter is based on a bundle of very thin tubes folded in half. The open ends of the tubes are turned in the direction opposite to the flow of dirty water. Their walls are a membrane through which water seeps relatively freely, but litter and microorganisms cannot penetrate through it. Hollow fiber filters are the lightest, and water passes through them as quickly as possible compared to ceramics.
However, their service life is relatively small: before replacement, the cartridge will clean from 1000 to 2000 liters, depending on the model. Also, hollow fibers can be damaged by freezing or strong impact. But these shortcomings are stopped by manufacturers. For example, the cartridge protects the filter pump housing or softening bumpers from impacts. And to prevent the fibers from freezing, the cartridge can be put in a sleeping bag or carried in an inner pocket of a jacket. These inconveniences are more than offset by the benefits of hollow fibers, which is why they are used in most outdoor filters today.
Examples: MSR HyperFlow, Platypus GravityWorks, Katadyn BeFree.
Ceramics – ceramic
Ceramic hiking filters are heavy but durable and cheaper than hollow fiber filters. Their cartridges are capable of filtering from 2,000 to 50,000 liters of water before they reach the end of their life. Water goes through the porous ceramic walls reluctantly, so they are used only in hiking filters with a pump.
This filter has to be cleaned more often than models based on hollow fibers, because the cartridges are easily clogged with fine debris. Because of this, the water pressure drops, after which the filter walls must be cleaned. But this is not difficult to do – it is enough to simply wipe them with a hard sponge or a coarse cloth. They are usually included in the kit. Ceramic cartridges must also not be frozen and can crack from a strong impact – for example, if dropped on rocks. Nevertheless, the popularity of ceramic filters does not decline – they are a time-tested classic.
Examples: MSR SweetWater, MSR MiniWorks EX, Katadyn Pocket, and Katadyn Combi.
Glass fiber – glass-fiber
Water in such filters seeps through a kind of fiberglass membrane. Fiberglass cartridges are lighter and filter water faster than ceramic cartridges. But they are heavier and slower than hollow fiber filters. The main disadvantage of fiberglass is its low resource. Even a good filter based on it is able to filter only 750-1150 liters of water, and then requires replacement.
Fiberglass filters are inconvenient to clean in the field if they become clogged: they cannot be wiped off like ceramics, and in order to rinse them with water, the cartridges must be removed from the case. For these reasons, fiberglass travel filters are becoming less common today.
Examples: Katadyn Hiker, Katadyn Hiker Pro, Katadyn Vario.
Finest hollow fibers – advanced hollow fibers
At the heart of these filters is also a bundle of very thin tubes with membrane walls. Only their walls are able to trap particles up to 0.02 microns in size, that is, even some viruses. The same hollow fibers are used today in hemodialysis machines – extrarenal blood purification. The filter cartridges made of the finest hollow fibers are frost-resistant and have a long service life. Before they reach the end of their life, about 10,000 liters of water are filtered, which is even more than some ceramic filters.
Examples: MSR Guardian Purifier and MSR Gravity Guardian Purifier.
Manufacturers add a block with an adsorbent to the design of many filters, for example, with activated carbon. Water already purified from litter and microorganisms passes through it, and the adsorbent additionally cleans it from chemical compounds and at the same time neutralizes unpleasant odors, normalizing the taste of water. However, activated carbon by itself is not suitable for the role of a full-fledged filter: with a large flow of water, it does not retain many microorganisms and debris, and there is also no way to check whether it has exhausted its resource or not.
How to maintain the travel filter
Most often, all maintenance of the filter boils down to rinsing its cartridge in clean water to clean it of fine debris. In most filter models, this is done using a so-called backflushing. In pumps, clean water is simply pumped in the opposite direction, and in gravity filters, it is enough to raise the container with clean water above the container with dirty water. In both cases, clean water goes in the opposite direction and flushes the debris from the filter surface. Manufacturers recommend backwashing after every 5-10 liters of filtered water. You need a little clean water for it, usually no more than 0.5-1 liters.
In some models of filters, the cartridge must be removed from the case and gently rinsed in clean water, which is a little less convenient to do, especially in the field. Ceramic filters are the easiest to maintain – just wipe them with a coarse sponge or cloth. Finally, the most advanced filter in the industry today, the MSR Guardian Purifier, is self-cleaning on the fly.
If on the route you often come across muddy or heavily littered water, then choose models that are equipped with a pre-filter. If there is no pre-filter, then it is advisable to strain the littered water through a loose cloth.
It is important that the filter pump manufacturer produces repair kits for them, which usually include lubricants for moving parts and replaceable spacer rings.
Before long-term storage and after a hike, all filters are recommended to be disinfected and dried so that pathogens do not multiply on their surface. As a rule, for this you need to pass clean water through them, to which a disinfectant has been added – the details can be found in the instructions for the filter.
When to change the travel filter
In order not to count the amount of filtered water, manufacturers come up with simple ways to determine whether their filter has exhausted its resource or not. For example, filters MSR MiniWorks, MSR SweetWater, Katadyn Pocket are supplied with a caliber – by attaching it to a ceramic cartridge, you can understand whether it is time to change it or not. For fiberglass and hollow fiber filters, the signal for replacement is usually a very low flow of water. If they filter it drop by drop, and rinsing and cleaning no longer helps, then it’s time for them to rest. The methods for checking the filter resource should be contained in the instructions for it or on the manufacturer’s website. It is better to clarify this before purchasing.
Additional Water Disinfection Methods
Sometimes the source of water can cause great concern – what if the risk of viral infections is high? Usually these are stagnant bodies of water in densely populated areas and places where a lot of livestock graze, which means that the water can be contaminated with sewage or animal feces. In these cases, the already filtered water should be additionally disinfected, for which there are at least three reliable methods. Each of them can be applied independently, provided that the water is already clean enough. But it is better to use them in tandem with a hiking microfilter. Then you will receive the purest and safest drinking water possible.
UV water treatment
Medium wavelength ultraviolet radiation is able to penetrate the cell walls of microorganisms and be absorbed by the nucleic acids DNA and RNA, which carry all the information about the cell. As a result of this process, microorganisms lose their ability to reproduce and become harmless to humans. UV radiation is actively used in urban wastewater treatment plants, as it is effective against all pathogens – viruses, bacteria and protozoa. But today there are also compact travel ultraviolet disinfectants. The most famous are portable SteriPen lamps, which are lowered into a container of purified water.
Alas, this technique can only be used when processing pure, transparent water without any mechanical impurities. Otherwise, they scatter UV rays, reducing their effectiveness. Also, compact UV lamps used in camping practice are not able to disinfect large volumes of water.
Chemical treatment of water
Chemical compounds create an aggressive environment for harmful microorganisms, thereby destroying them. Most often, these products are available in the form of drops or tablets. The most advanced preparations work on the basis of chlorine dioxide (Aquamira) or sodium hypochlorite (MSR SweetWater Solution), which not only disinfect water, but also normalize its taste. Also, such tools are inexpensive and as light as possible, which made them very popular among light walkers.
They are also effective only in pure water: mechanical impurities can bind the active chemical and precipitate with it. Also, chemical disinfectants can spoil the taste of water, and it can take a long time to disinfect water – up to four hours. And this process can slow down in cold water. Some remedies are not able to destroy cryptosporidium, a parasite that causes the intestinal disorder cryptosporidiosis, so read the instructions carefully. Another drawback: it is impossible to clean a “convenient” volume of water, since it is important to observe the dosage of the drug indicated in its instructions.
The oldest way to disinfect water. Effective against all pathogenic microorganisms and parasites. Boiling does not save only from chemical pollution of water and mechanical impurities. It is also the most time consuming method, which in addition leads to additional fuel consumption and loss of time on the route.
To avoid spending the entire hike in the bushes, follow two basic rules: drink only clean water and wash your hands thoroughly. With the first, you will be helped by complex cleaning using a filter and disinfecting agents, and with the second – your own discipline and established personal hygiene habits.
TOP 11 Portable Water Filter for Backpacking
Modern filters from the world’s leading manufacturers provide highly effective water purification in any adverse conditions. Going even on a one-day hike, you need to include one of the filters below, included in the TOP of the best water purifiers, in your camping equipment.
#1 Katadyn Vario Portable Filter
Katadyn (Switzerland) is a well-known European company founded in 1926. It produces various models of filtering devices.
The Vario filter successfully combines compact dimensions, superior performance and affordability. Differs in high productivity: 2 l / min. The total throughput is 2000 liters.
The Katadyn Vario has 2 operating modes:
- Faster Flow for lightly polluted water. The ceramic filter is turned off. System productivity – 2 l / min.
- Longer Life – mode for very dirty water. The device with the included prefilter cleans about 1 l / min.
The design feature of the cartridge is a combination of a porous ceramic prefilter (pore Ø 0.3 microns) and a fiberglass filter with activated carbon. Such a system allows you to eliminate unpleasant odors and remove from the water small particles of all kinds of contaminants, spores of parasites, algae, viruses and bacteria, as well as chemical impurities.
According to tourists, the Vario filter thoroughly cleans even dirty swamp water. This device is absolutely irreplaceable in field conditions!
#2 Katadyn Mini Ceramic Black
The pore size of the ceramic filter is 0.2 microns, which removes up to 99.99% of all viruses and bacteria.
Small and very lightweight, this filtering device has such a distinctive nuance as silver sputtering, which guarantees the complete destruction of the simplest microorganisms, helminth cysts, etc.
Water is pumped through the cartridge using a pump. The Katadyn Mini has a capacity of 0.5 l / min and a total resource of 7000 l. A must-have device for lovers of active pastime!
#3 LifeStraw Mission
Mission mini-station of the famous LifeStraw brand is produced by the manufacturer Vestergaard Frandsen (Switzerland). The device easily and simply solves all problems with water on a long hike: after all, its productivity is up to 2 l / min., Its throughput is 18,000 l.
The LifeStraw Mission model is a 12-liter hand-pumped rubber reservoir that can be hung from the roll bag handle. The gravity membrane filter removes 99.99% of all bacteria, viruses and any organic debris.
Affordable price, convenient design and large enough capacity make the LifeStraw Mission the ideal water purification system for camping.
#4 LifeStraw Personal
This compact and ergonomic filter with built-in purification system is one of the most sought-after models for personal use. Made in the form of a tube made of durable, safe plastic.
Due to the presence of hollow fiber membranes, the filtration device is able to kill pathogenic microflora even in the wastewater of megacities. The total throughput is 1000 liters.
Since 2005, it has been widely used not only in the tourist environment, but also in places of natural disasters. Provides access to drinking water for people in extreme situations.
#5 Sawyer Point One Squeeze
Sawyer Squeeze (USA) is a filter from which water can be safely consumed without additional disinfection. The hollow fiber cartridge guarantees almost 100% protection against various microorganisms and the smallest particles of debris.
The compact filtration device is small in size; weight – 85 grams; throughput – 4.5 million liters. All threads of the device match the threads of any plastic bottle. With regular backwash in mind, the Point One Squeeze will last almost indefinitely.
Many tourists admit that in terms of the sum of such indicators as dimensions, resource, price, filtration quality and ease of use in the wild, there is no alternative to this filter.
#6 Sawyer Mini filter
The compact filter from the American company Sawyer weighs only 60 g. But despite its minimal size, it is the most productive device in the personal category. After all, its throughput resource is almost 378,541 liters!
Another advantage is the ability to attach the Mini filter to a plastic bottle, portable drinking system, collapsible drinking tank, or to drink water from a reservoir through a special straw.
Thanks to the use of a 0.01 micron capillary membrane, the Sawyer Mini removes up to 99.99% of various impurities, salmonellosis and cholera pathogens, Escherichia coli, Giardia, etc. This microfilter reliably cleans even swamp water. With such a device, you can safely go to countries where there is no confidence in the quality of drinking water.
#7 Adventurer Opti SteriPen Portable Disinfection
The mobile device from the American company SteriPen is equipped with a filter, which is a powerful ultraviolet lamp with a long service life of 8000 hours.
The use of short-wave bactericidal UF radiation ensures complete disinfection of contaminated water. The ultraviolet lamp quickly destroys pathogenic microflora (bacteria, viruses, cryptosporidium, lamblia and other parasites), which can cause poisoning or serious illness. However, it does not remove mechanical impurities – a filter is needed for this purpose.
The Adventurer Opti model is distinguished by its light weight (108 g) and a sufficiently high performance (0.5 l / 48 sec.), Which allows you to actively use the device on long journeys, on hikes, fishing, hunting or on a trip to the country.
#8 Portable disinfectant SteriPen Ultra
It will take you less than a minute to disinfect dirty water if you use the SteriPen Ultra. This device almost instantly kills all living things in water. This high efficiency is due to the presence of a battery-powered UF lamp in the disinfectant. The protection of the electrical “filling” from water is ensured by reliable waterproofing of the disinfectant.
The device is very easy to operate:
- One press of the button – and the lamp turns on for 1 minute to disinfect 1 liter of water.
- Two presses – and the lamp will sterilize 0.5 liters of water in 30 seconds.
Portable model SteriPen Ultra is a solid guarantee of high-quality water purification in field conditions. That is why this device must be in the backpack of every tourist.
#9 Survival Filter PRO
Survival PRO filtration device has been successfully tested in several American laboratories. It has been proven: a double hollow fiber membrane (0.01 microns) removes 99.99% of most heavy metals (including 93% lead, 99.5% mercury), chemicals, viruses, bacteria, parasites.
The filter is made of first class and durable materials:
- body – made of ABS-plastic used for the production of car bumpers;
- medical ultrafilter – made of polysulfone, which is used in space stations;
- the handle is reinforced with a steel rod inserted inside.
Survival PRO comes with a complete set, including a removable drinking cup, a snorkel for drinking water directly from the pond, a portable hydropack, a travel bag, and more.
#10 Aquamira Frontier Emergency Water Filter System
The Frontier Emergency disinfection tube of the American brand Aquamira is a convenient travel filter with a wide range of uses. Such a structural part of the filter as replaceable adapters makes it possible to drink from a mug or a standard bottle. And if you use the complete tube, you can drink purified water directly from the reservoir.
An important nuance: the device “Aquamira Frontier” is able not only to remove almost 100% of pathogenic microorganisms from the water, but also to suppress their reproduction inside the filter.
The Aquamira Frontier is a compact solution for personal use. Small size, lightest weight (only 30 g) and sufficient resource (110 l) make this device a necessary element of equipment for tourists, hunters, fishermen and in general everyone who spends a lot of time in nature.
#11 MSR Trailshot Microfilter Filter
The collapsible filter of the popular American brand has a high performance (1 l / min.) And a solid resource of a replaceable cartridge (approximately 2000 l).
The Trailshot Microfilter filter device is attractive to consumers with features such as:
- Modest dimensions – 6 cm × 15 cm – and light weight: only 142 g.
- Simplicity of design – the minimum number of parts excludes the possibility of damage to the device.
- A pleasant combination of reliability, functionality and affordable prices.
The characteristics of the pocket filter comply with the P231 NSF Protocol, which means almost 100% destruction of bacteria, protozoa and removal of solid impurities. Do you want to get rid of problems with drinking water on a hike? Then the MSR Trailshot Microfilter should always be in your backpack.
We hope this review of water purifiers from the best manufacturers in the world will help you successfully replenish your arsenal of outdoor devices. Choose, buy and enjoy!